Mold for casting brass



(No Model.)

W ADAMS v MOLD FOR CASTING BRASS. N0. 36 7,774. Patented Aug. 9,1887.

7 i it,

UNITED STATES- PATENT OFFICE.

\VILLIAM ADAMS, OF ANSONIA, CONNECTICUT.

MOLD FOR CASTiNG BRASS.

SPECIPICATION forn1ing part of Letters Patent No. 367,774, dated August 9, 1887.

Application filed March .28, 1887. Serial No. "232,656. (No model.) i

To all whom it may concern.-

Be it known that I, ILLIAM Animus, a citizen of the United States, residing at Ansonia,

in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Molds for Casting Brass; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My intention relates to the casting of metals and alloys, more especially brass. and has for its object to so improve the construction of the molds that aperfectly solid bar, ingot, or plate may be produced with but slight waste of metal in the sprue.

Vith these ends in view I have devised the novel improvements, of which the following description, in connection with the acco1n pauying drawings is a specification, numbers being used to designate the several parts.

Figure l-is an elevation of one part of the mold; Fig. 2, a longitudinal section of both parts of the mold secured together in position; and Fig. 3 is a plan view of the mold.

1 and 2 designate the two parts of the mold, each of which is provided with a flange, 3, upon three sides thereof, one part being made smaller than the other, so that its flange will fit within the flange of the other part, thus forming a perfectly tight mold to receive the molten metal. In use the parts are held together by metallic straps 4, which are tightenedby wedges 5, or in any ordinary or preferred manner. The inner side ofthe top of each part of the mold is beveled, as at 6, to form a suitable ingate to receive the molten metal.

7 denotes holes through the opposite sides of the mold near the top, which serve the double purpose of allowing air to escape when the molten metal is poured in, and also to receive pins or tcnons 8 upon detachable guides 9, which extend across the opening between the opposite sides of the mold. Any number of holes may be provided and any number of guides may be used. Three, however, will ordinarily be found quite suflicient. The object of these guides is to split or break up the stream of molten metal as it is poured into the mold,

so that the air within the mold mayfind ready escape at the top and through holes7. These guides may of course be made of any preferred shape or size. I preferably make them triangular, as shown in the drawings, and in prac tice have found three to be quite sufficient.

The arrangement of these guides is likewise not of the essence of my invention.

In the drawings I have shown two rows of ventilatingholes,and have provided one guide secured in the upper row and two guides on opposite sides thereof secured in the lower row. These guides are of course the same width as the opening inthe mold, andthe ends of the guides used in the upper row are beveled to correspond with the bevel of the ingate, as clearly shown in Fig. 3-that is, the upper end of the guide is made wider than the lower end, so that it will engage the beveled sides of the iugate and prevent the molten metal from filling in at the ends. By dividing the stream of molten metal in this manner, causing it to pass into the mold in four or more streams, at the same time providing air-holes for the ready escape of the air as it passes out from the mold,

, Linsure that, without expensive scraping,

about tweutyfive per cent. more metal from the crucible will make a perfectly solid ingot orplate than in the ordinary mold. I also avoid the enormous waste of metal in the sprues, which is necessitated by the present system of casting. In other words, I am enabled to produce an ingot or plate of a given size in a very much shorter mold than has been possible heretofore, owing to the fact of the stream of molten metal being divided as it enters the mold and the mold being properly ventilated.

It will of course be understood that thedetails of construction may be varied to an almost unlimited extent without departing from the spirit of my invention.

I claim 1. A mold for casting,having substantially horizontal ventilating-holes adapted to receive the tcnons of guides and support the-latter in the mouth of the mold, in combination with said guides and tcnons.

2. A mold for casting, having a flared month and provided with one or more detachable guides situatedin and across said flared mouth,

whereby several funnelshaped entrances are provided by the walls of the mouth, together with the walls of the guide for receiving the molten metal, the stream of which is also di vided by the guide as it enters the mold.

3. A mold for casting, having ventilatingholes in the sides near the top thereof, and guides situated at different heights, the higher adapted to deliver to the lower, whereby the stream of molten metal is divided as it enters the mold.

at. The combination, with the parts of a mold having holes 7 near the top thereof, of guides lying in the opening in the mold, and having pins or tenons adapted to engage the holes, whereby they are held in position.

In testimony whereof Iaflix my signature in presence 0t: two witnesses.

\VILLTAM ADAMS.

\Vitnesses:

H. O. SPENCER, WILLIAM GREATOREX. 

